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- Genre: Doctoral Dissertation
Description
This dissertation explores vulnerability to extreme heat hazards in the Maricopa County, Arizona metropolitan region. By engaging an interdisciplinary approach, I uncover the epidemiological, historical-geographical, and mitigation dimensions of human vulnerability to extreme heat in a rapidly urbanizing region characterized by an intense urban heat island and summertime heat waves. I first frame the overall research within global climate change and hazards vulnerability research literature, and then present three case studies. I conclude with a synthesis of the findings and lessons learned from my interdisciplinary approach using an urban political ecology framework. In the first case study I construct and map a predictive index of sensitivity to heat health risks for neighborhoods, compare predicted neighborhood sensitivity to heat-related hospitalization rates, and estimate relative risk of hospitalizations for neighborhoods. In the second case study, I unpack the history and geography of land use/land cover change, urban development and marginalization of minorities that created the metropolitan region's urban heat island and consequently, the present conditions of extreme heat exposure and vulnerability in the urban core. The third study uses computational microclimate modeling to evaluate the potential of a vegetation-based intervention for mitigating extreme heat in an urban core neighborhood. Several findings relevant to extreme heat vulnerability emerge from the case studies. First, two main socio-demographic groups are found to be at higher risk for heat illness: low-income minorities in sparsely-vegetated neighborhoods in the urban core, and the elderly and socially-isolated in the expansive suburban fringe of Maricopa County. The second case study reveals that current conditions of heat exposure in the region's urban heat island are the legacy of historical marginalization of minorities and large-scale land-use/land cover transformations of natural desert land covers into heat-retaining urban surfaces of the built environment. Third, summertime air temperature reductions in the range 0.9-1.9 °C and of up to 8.4 °C in surface temperatures in the urban core can be achieved through desert-adapted canopied vegetation, suggesting that, at the microscale, the urban heat island can be mitigated by creating vegetated park cool islands. A synthesis of the three case studies using the urban political ecology framework argues that climate changed-induced heat hazards in cities must be problematized within the socio-ecological transformations that produce and reproduce urban landscapes of risk. The interdisciplinary approach to heat hazards in this dissertation advances understanding of the social and ecological drivers of extreme heat by drawing on multiple theories and methods from sociology, urban and Marxist geography, microclimatology, spatial epidemiology, environmental history, political economy and urban political ecology.
ContributorsDeclet-Barreto, Juan (Author) / Harlan, Sharon L (Thesis advisor) / Bolin, Bob (Thesis advisor) / Hirt, Paul (Committee member) / Boone, Christopher (Committee member) / Arizona State University (Publisher)
Created2013
Description
Arizona has become infamous for its strong nativist and anti-immigrant climate, gaining national and international attention for legislation and policing practices that are in violation of civil and human rights. Despite the grave injustices perpetuated against migrants and communities of color, they exist in an environment of acceptance. Applying Critical Pedagogy, Critical Race Theory/ Latina(o) Critical Race Theory, and Chicana Feminist epistemologies, this study interrogates the polarized discourse that has intensified in Arizona, within the immigration movement and across its political spectrum, from 2006 to 2008. I present an auto-ethnographic account, including use of participant action research, narrative, and storytelling methods that explores ways in which resistance is manifested and the implications for creating sustainable social change. I argue that legislation, raids, and local immigration enforcement tactics reinforce the dominant group's fear of the "other," resulting in micro and macro aggressions that legitimize racial profiling and help safeguard and fortify White privilege through the fabrication of racialized identities. Simultaneously, organizing strategies and discourse of immigrant rights advocates reflect an entanglement of perceived identities and a struggle to negotiate, contest, and redefine boundaries of public space. The raids, coupled with protests and counter demonstrations, produced a public spectacle that reinforces anti-immigrant connections between race and crime. Lastly, I apply and introduce Border Crit, a new and emerging theory I propose to better address research in the borderlands.
ContributorsMaldonado, Angeles (Author) / Swadener, Elizabeth B. (Thesis advisor) / Scott, Kimberly (Committee member) / Mckinley Jones Brayboy, Bryan (Committee member) / Arizona State University (Publisher)
Created2013
Description
This dissertation explores how the written word and natural and cultural landscapes entwine to create a place, the process by which Arizona's landscapes affected narratives written about the place and how those narratives created representations of Arizona over time. From before Arizona became a state in 1912 to the day its citizens celebrated one hundred years as a state in 2012, words have played a role in making it the place it is. The literature about Arizona and narratives drawn from its landscapes reveal writers' perceptions, what they believe is important and useful, what motivates or attracts them to the place. Those perceptions translated into words organized in various ways create an image of Arizona for readers. I explore written works taken at twenty-five year intervals--1912 and subsequent twenty-five year anniversaries--synthesizing narratives about Arizona and examining how those representations of the place changed (or did not change). To capture one hundred years of published material, I chose sources from several genres including official state publications, newspapers, novels, poetry, autobiography, journals, federal publications, and the Arizona Highways magazine. I chose sources that would have been available to the reading public, publications that demonstrated a wide readership. In examining the words about Arizona that have been readily available to the English-reading public, the importance of the power of the printed word becomes clear. Arizona became the place it is in the twenty-first century, in part, because people with power--in the federal and state governments, boosters, and business leaders--wrote about it in such a way as to influence growth and tourism sometimes at the expense of minority groups and the environment. Minority groups' narratives in their own words were absent from Arizona's written narrative landscape until the second half of the twentieth century when they began publishing their own stories. The narratives about Arizona changed over time, from literature dominated by boosting and promotion to a body of literature with many layers, many voices. Women, Native American, and Hispanic narratives, and environmentalists' and boosters' words created a more complex representation of Arizona in the twenty-first century, and more accurately reflected its cultural landscape, than the Arizona represented in earlier narratives.
ContributorsEngel-Pearson, Kimberli (Author) / Pyne, Stephen (Thesis advisor) / Hirt, Paul (Thesis advisor) / Adamson, Joni (Committee member) / Arizona State University (Publisher)
Created2014
Description
ABSTRACT
This dissertation examines the encounter of a large cadre of 103 Roman Catholic priests from Ireland and their Mexican parishioners. Scholars have not explored this rich historical juncture. This is the first study to do so. Primary and secondary sources, as well as numerous oral history interviews provide the evidence that supports the thesis that the Irish priests and the Mexican people shared something of a common consciousness, resulting from similar histories, worldviews, and cultural values. This counters the prevailing scholarly opinion which excoriates Euroamerican churchmen of that time for misunderstanding and neglecting their Hispanic flock. Standing apart in this respect, most priests from Ireland--unlike clergy from other backgrounds-- were sympathetic to folk traditions and experienced a synergy with Mexican people which enabled them to adapt and learn from Hispanic communities.
Yet for all that Irish priests and Mexicans shared in common, these pastors failed to see or at least address the social, economic, and ecclesiastical discrimination which Mexicans daily experienced or challenge the systems which kept them subservient. Paradoxically, these clergy accepted Mexican people, but they also accepted the racist structures which marginalized them.
This historical moment is unique for two reasons. In the mid-twentieth century Irish-born priests were ubiquitous and constituted the largest number of Catholic missionaries in the world. Today there are scarcely enough priests to supply the parishes of Ireland. Similarly, in the mid- twentieth century Mexicanos and Mexican Americans were almost without exception Catholic.
Today this can no longer be taken for granted. These shifts presage the end of an era for the Church in Arizona. Nationally, they correspond to the denouement of long-standing U.S. Irish ecclesiastical establishment and herald the ascendancy of an Hispanic Catholic Church.
In reconstructing this history salient themes emerge: ethnicity, religion (official/popular), power relations, prejudice/discrimination, and the discovery of common ground amid differences. This matrix gives rise to a complex crisscrossing of trajectories of Catholics and Protestants (in society), Irish and Mexican Catholics (in the church), priest and parishioners (in the parish). It holds lessons for the future.
This dissertation examines the encounter of a large cadre of 103 Roman Catholic priests from Ireland and their Mexican parishioners. Scholars have not explored this rich historical juncture. This is the first study to do so. Primary and secondary sources, as well as numerous oral history interviews provide the evidence that supports the thesis that the Irish priests and the Mexican people shared something of a common consciousness, resulting from similar histories, worldviews, and cultural values. This counters the prevailing scholarly opinion which excoriates Euroamerican churchmen of that time for misunderstanding and neglecting their Hispanic flock. Standing apart in this respect, most priests from Ireland--unlike clergy from other backgrounds-- were sympathetic to folk traditions and experienced a synergy with Mexican people which enabled them to adapt and learn from Hispanic communities.
Yet for all that Irish priests and Mexicans shared in common, these pastors failed to see or at least address the social, economic, and ecclesiastical discrimination which Mexicans daily experienced or challenge the systems which kept them subservient. Paradoxically, these clergy accepted Mexican people, but they also accepted the racist structures which marginalized them.
This historical moment is unique for two reasons. In the mid-twentieth century Irish-born priests were ubiquitous and constituted the largest number of Catholic missionaries in the world. Today there are scarcely enough priests to supply the parishes of Ireland. Similarly, in the mid- twentieth century Mexicanos and Mexican Americans were almost without exception Catholic.
Today this can no longer be taken for granted. These shifts presage the end of an era for the Church in Arizona. Nationally, they correspond to the denouement of long-standing U.S. Irish ecclesiastical establishment and herald the ascendancy of an Hispanic Catholic Church.
In reconstructing this history salient themes emerge: ethnicity, religion (official/popular), power relations, prejudice/discrimination, and the discovery of common ground amid differences. This matrix gives rise to a complex crisscrossing of trajectories of Catholics and Protestants (in society), Irish and Mexican Catholics (in the church), priest and parishioners (in the parish). It holds lessons for the future.
ContributorsCunningham, John (Author) / Fessenden, Tracy (Thesis advisor) / Moore, Moses (Committee member) / Fixico, Donald (Committee member) / Arizona State University (Publisher)
Created2015
Description
This dissertation explores the interrelationships between periods of rapid social change and regional-scale social identities. Using archaeological data from the Cibola region of the U.S. Southwest, I examine changes in the nature and scale of social identification across a period of demographic and social upheaval (A.D. 1150-1325) marked by a shift from dispersed hamlets, to clustered villages, and eventually, to a small number of large nucleated towns. This transformation in settlement organization entailed a fundamental reconfiguration of the relationships among households and communities across an area of over 45,000 km2. This study draws on contemporary social theory focused on political mobilization and social movements to investigate how changes in the process of social identification can influence the potential for such widespread and rapid transformations. This framework suggests that social identification can be divided into two primary modes; relational identification based on networks of interaction among individuals, and categorical identification based on active expressions of affiliation with social roles or groups to which one can belong. Importantly, trajectories of social transformations are closely tied to the interrelationships between these two modes of identification. This study has three components: Social transformation, indicated by rapid demographic and settlement transitions, is documented through settlement studies drawing on a massive, regional database including over 1,500 sites. Relational identities, indicated by networks of interaction, are documented through ceramic compositional analyses of over 2,100 potsherds, technological characterizations of over 2,000 utilitarian ceramic vessels, and the distributions of different types of domestic architectural features across the region. Categorical identities are documented through stylistic comparisons of a large sample of polychrome ceramic vessels and characterizations of public architectural spaces. Contrary to assumptions underlying traditional approaches to social identity in archaeology, this study demonstrates that relational and categorical identities are not necessarily coterminous. Importantly, however, the strongest patterns of relational connections prior to the period of social transformation in the Cibola region largely predict the scale and structure of changes associated with that transformation. This suggests that the social transformation in the Cibola region, despite occurring in a non-state setting, was governed by similar dynamics to well-documented contemporary examples.
ContributorsPeeples, Matthew A. (Author) / Kintigh, Keith W. (Thesis advisor) / Hegmon, Michelle (Thesis advisor) / Spielmann, Katherine A. (Committee member) / Arizona State University (Publisher)
Created2011
Description
Infectious diseases have emerged as a significant threat to wildlife. Environmental change is often implicated as an underlying factor driving this emergence. With this recent rise in disease emergence and the acceleration of environmental change, it is important to identify the environmental factors that alter host-pathogen dynamics and their underlying mechanisms. The emerging pathogen Batrachochytrium dendrobatidis (Bd) is a clear example of the negative effects infectious diseases can have on wildlife. Bd is linked to global declines in amphibian diversity and abundance. However, there is considerable variation in population-level responses to Bd, with some hosts experiencing marked declines while others persist. Environmental factors may play a role in this variation. This research used populations of pond-breeding chorus frogs (Pseudacris maculata) in Arizona to test if three rapidly changing environmental factors nitrogen (N), phosphorus (P), and temperature influence the presence, prevalence, and severity of Bd infections. I evaluated the reliability of a new technique for detecting Bd in water samples and combined this technique with animal sampling to monitor Bd in wild chorus frogs. Monitoring from 20 frog populations found high Bd presence and prevalence during breeding. A laboratory experiment found 85% adult mortality as a result of Bd infection; however, estimated chorus frog densities in wild populations increased significantly over two years of sampling despite high Bd prevalence. Presence, prevalence, and severity of Bd infections were not correlated with aqueous concentrations of N or P. There was, however, support for an annual temperature-induced reduction in Bd prevalence in newly metamorphosed larvae. A simple mathematical model suggests that this annual temperature-induced reduction of Bd infections in larvae in combination with rapid host maturation may help chorus frog populations persist despite high adult mortality. These results demonstrate that Bd can persist across a wide range of environmental conditions, providing little support for the influence of N and P on Bd dynamics, and show that water temperature may play an important role in altering Bd dynamics, enabling chorus frogs to persist with this pathogen. These findings demonstrate the importance of environmental context and host life history for the outcome of host-pathogen interactions.
ContributorsHyman, Oliver J. (Author) / Collins, James P. (Thesis advisor) / Davidson, Elizabeth W. (Committee member) / Anderies, John M. (Committee member) / Elser, James J. (Committee member) / Escalante, Ananias (Committee member) / Arizona State University (Publisher)
Created2012
Description
The Phoenix area had no sizable Mexican presence before the U.S. took over the territory. Some assumed that the region was founded completely by whites from the outset. Whites and Mexicans actually held nearly equal populations throughout the first two decades of settlement. Though they did not hold equal status, their cohabitation was largely characterized by mutual interdependence and respect. Transforming the Salt River Valley's desert terrain into a regional agricultural hub depended on the Sonorans' preindustrial skills. As the town modernized, a new class of resident sought large scale projects to integrate Phoenix into the U.S. economy. Two pivotal projects achieved this. First, railroad spur lines made Phoenix accessible for migrants, as well as allowing farmers to supply commercial markets profitably. Second, the massive Roosevelt Dam secured a stable water supply for valley farmers. While these projects provided the foundation for development, it was cotton that brought commercial success. Throughout World War I, valley cotton growers capitalized on the booming cotton market by expanding their average acreage from 400 acres in 1912 to 130,000 acres in 1920. This rapid escalation to meet wartime demands depended upon a massive seasonal labor force from Mexico. While this boom brought prosperity to valley farmers, it solidified the Mexican's role in the Salt River Valley as little more than a laborer. Valley cotton growers impressively managed all labor issues through a well-organized collective association. Over-recruitment and wage setting kept workers from collective bargaining for better wages. The cotton growers' hegemony crashed along with cotton prices in 1921. Though the industry recovered fairly quickly, the cotton growers faced a new challenge in the rising national clamor to restrict Mexican immigration to the U.S. Though growers fought restrictions in Congressional hearings throughout the decade, the economic crash of 1929 finally ended widespread Mexican immigration. By the time of the crash, most Mexicans who remained lived in the agricultural peripheries or scattered urban barrios.
ContributorsWalker, Scott (Author) / Rosales, Francisco A (Thesis advisor) / Vandermeer, Phil (Committee member) / Stoner, Lynn (Committee member) / Arizona State University (Publisher)
Created2012
Description
The presence of language minority students in American schools is a growing phenomenon in present-day times. In the year 2008, almost 11 million school-age children spoke a language other than English at home. Educational language policy is largely influenced by the attitudes that society holds regarding the presence of language minority speakers in the community. One of the sources of these attitudes is the written press. This research aimed at identifying and analyzing the ideologies that newspapers display in connection with language minority speakers. The underlying assumption of the study was that the English language occupies a dominant position in society, thus creating a power struggle in which speakers of other languages are disenfranchised. Using critical theory as the theoretical framework enabled the study to identify and oppose the ideologies that may reproduce and perpetuate social inequalities. The methodological approach used was critical discourse analysis (CDA) which aligns with the main tenets of critical theory, among them the need to uncover hidden ideologies. The analysis of articles from English-language (The Arizona Republic and the East Valley Tribune) and Spanish-language (La Prensa Hispana) newspapers allowed for the identification of the ideologies of the written press in connection to two main hypothetical constructs: education and immigration. The analysis of the results revealed that the three newspapers of the study held specific ideologies on issues related to the education of language minority students and immigration. Whereas the East Valley Tribune showed an overarching ideology connected to the opposition of immigrant students in schools, the hegemonic position of theEnglish language, and a belligerent stance toward the immigrant community, The Arizona Republic showed a favorable attitude to both English Language Learners and immigrants, based on reasons mainly related to the economic interest of the state of Arizona. La Prensa Hispana, on the other hand, showed ideologies favorable to the immigrant community based on humanitarianism. In summary, the results confirm that newspapers hold specific ideologies and that these ideologies are reflected in the content and the manner of their information to the public.
ContributorsGonzález-Carriedo, Ricardo (Author) / Ovando, Carlos (Thesis advisor) / Wiley, Terrence (Thesis advisor) / Fischman, Gustavo (Committee member) / Mccarty, Teresa (Committee member) / Arizona State University (Publisher)
Created2012
Description
Monsoon hazards routinely affect the community, economy, and environment of the American Southwest. A common link for hazard development during the North American Monsoon concerns the interplay between temperature, moisture, and wind in the vertical atmosphere controlled by an unstable monsoon circulation. This dissertation investigates vertical atmospheric patterns using in-situ sounding data, specifically, 1) environments favorable for severe hail on the Colorado Plateau, 2) significant parameters distinguishing unhealthy versus healthy ozone days in Phoenix, Arizona, and 3) vertical profile alignments associated with distinct ranges in ozone concentrations observed in Phoenix having defined health impacts.
The first study (published in the Journal of the Arizona-Nevada Academy of Science) determines significant variables on Flagstaff, Arizona 12Z rawinsonde data (1996-2009) found on severe hail days on the Colorado Plateau. Severe hail is related to greater sub-300 hectopascals (hPa) moisture, a warmer atmospheric column, lighter above surface wind speeds, more southerly to southeasterly oriented winds throughout the vertical (except at the 700 hPa pressure level), and higher geopotential heights.
The second study (published in Atmospheric Environment) employs principal component, linear discriminant, and synoptic composite analyses using Phoenix, Arizona rawinsonde data (2006-2016) to identify common monsoon patterns affecting ozone accumulation in the Phoenix metropolitan area. Unhealthy ozone occurs with amplified high-pressure ridging over the Four Corners region, 500 hPa heights often exceeding 5910 meters, surface afternoon temperatures typically over 40°C, lighter wind speeds in the planetary boundary layer under four ms-1, and persistent light easterly flow between 700-500 hPa countering the daytime mountain-valley circulation.
The final study (under revision in Weather and Forecasting) assesses composite atmospheric sounding analysis to forecast Air Quality Index ozone classifications of Good, Moderate, and collectively categories exceeding the U.S. EPA 2015 standard. The analysis, using Phoenix 12Z rawinsonde data (2006-2017), identifies the existence of “pollutant dispersion windows” for ozone accumulation and dispersal in Phoenix.
Ultimately, monsoon hazards result from a complex and evolving vertical atmosphere. This dissertation demonstrates the viability using available in-situ vertical upper-air data to anticipate recurring atmospheric states contributing to specific hazards. These results will improve monsoon hazard prediction in an effort to protect public and infrastructure.
The first study (published in the Journal of the Arizona-Nevada Academy of Science) determines significant variables on Flagstaff, Arizona 12Z rawinsonde data (1996-2009) found on severe hail days on the Colorado Plateau. Severe hail is related to greater sub-300 hectopascals (hPa) moisture, a warmer atmospheric column, lighter above surface wind speeds, more southerly to southeasterly oriented winds throughout the vertical (except at the 700 hPa pressure level), and higher geopotential heights.
The second study (published in Atmospheric Environment) employs principal component, linear discriminant, and synoptic composite analyses using Phoenix, Arizona rawinsonde data (2006-2016) to identify common monsoon patterns affecting ozone accumulation in the Phoenix metropolitan area. Unhealthy ozone occurs with amplified high-pressure ridging over the Four Corners region, 500 hPa heights often exceeding 5910 meters, surface afternoon temperatures typically over 40°C, lighter wind speeds in the planetary boundary layer under four ms-1, and persistent light easterly flow between 700-500 hPa countering the daytime mountain-valley circulation.
The final study (under revision in Weather and Forecasting) assesses composite atmospheric sounding analysis to forecast Air Quality Index ozone classifications of Good, Moderate, and collectively categories exceeding the U.S. EPA 2015 standard. The analysis, using Phoenix 12Z rawinsonde data (2006-2017), identifies the existence of “pollutant dispersion windows” for ozone accumulation and dispersal in Phoenix.
Ultimately, monsoon hazards result from a complex and evolving vertical atmosphere. This dissertation demonstrates the viability using available in-situ vertical upper-air data to anticipate recurring atmospheric states contributing to specific hazards. These results will improve monsoon hazard prediction in an effort to protect public and infrastructure.
ContributorsMalloy, Jonny William (Author) / Cerveny, Randall S. (Thesis advisor) / Selover, Nancy J (Committee member) / Brazel, Anthony J. (Committee member) / Balling, Robert C. (Committee member) / Arizona State University (Publisher)
Created2019
Description
Since the late 1990s thousands of new Border Patrol agents, hundreds of miles of fencing, and additional immigration checkpoints have been added to the Mexico-U.S. border region. This unprecedented increase in boundary enforcement has strained existing relationships and created new separations between people and places in the borderlands. Southwestern Arizona has been impacted in especially dramatic ways, as the “hardening” of the international boundary has transformed conservation and indigenous spaces into theaters of drug interdiction and immigration control. This dissertation explores this transformation in southwestern Arizona, a region that was known by Spanish Colonial administrators as the Papaguería. With the community of Ajo at the center of the narrative, this dissertation explores the ways that industry and conservation have long shaped the social relations and the landscape of the region. The destruction of old borders, the creation of new borders, and the redefinition of space has been an ongoing process that continues to define some groups of people as insiders and other groups as outsiders. In the current era of border security echoes from earlier colonial encounters reverberate into the present, shaping landscapes and the lives of local residents in the contemporary Papaguería in significant ways.
ContributorsWarren, Scott (Author) / Arreola, Daniel D (Thesis advisor) / Klett, Mark (Committee member) / Hirt, Paul (Committee member) / McHugh, Kevin E (Committee member) / Arizona State University (Publisher)
Created2015